Squirrels access your property for want of warmth, a place to sleep, and things to chew. Removing these incentives makes squirrels less likely to want to enter your attic. Sadly, attics are usually primarily made of wood, the favourite thing to chew for a squirrel. Squirrels’ teeth by evolution never stop growing, so as long as we have squirrels, we will have chewing. As you can imagine, it is easier said than done to remove wood from an attic. What can be done, however, is to cover exposed wood to reduce the incentive. Furthermore, wood can be covered by a non-lethal wax or another substance, so as to stop squirrels from chewing. After all, what squirrel would want to wrap its chops around foul-tasting wood? Another mainstay of the squirrel’s chewing diet is electrical cables. This can be especially damaging, as disruption of electrical cables can lead to electrical fires. If you have cables exposed in your attic, consider weighing them down with cable ties and other such equipment, to ensure that squirrels do not see your cables as a target.

Many squirrel dens are made upon attic insulation, which has the benefit of being both soft and warm. Therefore, if you remove this insulation, you will remove the primary incentive for squirrels to infest your attic. Again, this is easier said than done, as insulation is present for a reason, to keep your house warm. However, many attics have leftover insulation just lying around, which can be easily covered and removed. If your roof is the right shape, there is also a reasonably simple way to make insulation less comfortable. If you have spare wooden planks or other hard materials, consider placing them on top of the insulation. That way, your house will still be properly insulated, without the comfort that insulation offers to prospective squirrels. This does not just apply to insulation: remove or cover all soft surfaces, so squirrels cannot find a suitable place to breed in your attic.